`{:(,"Column-A",,,"Column-B"),((A),"Sublimation",(),(a),NaCl+"water"),((B),"Filtration",(),(b),"Iodine+sand"),((C),"Evaporation",(),(c),"Sawdust+water"):}`

Options

A. `Atoa" "Btoc" "Ctob`
B. `Atoc" "Btoa" "Ctob`
C. `Atoc" "Btob" "Ctoa`
D. `Atob" "Btoc" "Ctoa`

Explanation

To solve the question, we need to match the separation methods in Column A with the appropriate mixtures in Column B based on the properties of the substances involved. Let's break it down step by step.

### Step 1: Understand Sublimation
- **Sublimation** is a process where a solid changes directly into a gas without passing through the liquid state.
- In the mixtures provided, we need to identify which one contains a solid that can sublime.
- **Mixture:** NaCl + water (sodium chloride is soluble in water and does not sublime)
- **Mixture:** Iodine + sand (iodine can sublime)
- **Mixture:** Sawdust + water (sawdust does not sublime)

**Conclusion:** The correct match for sublimation is **(B) Iodine + sand**.

### Step 2: Understand Filtration
- **Filtration** is a method used to separate insoluble solids from liquids.
- We need to find a mixture where one component is insoluble in the other.
- **Mixture:** NaCl + water (sodium chloride is soluble in water)
- **Mixture:** Iodine + sand (sand is insoluble in iodine)
- **Mixture:** Sawdust + water (sawdust is insoluble in water)

**Conclusion:** The correct match for filtration is **(C) Sawdust + water**.

### Step 3: Understand Evaporation
- **Evaporation** is the process where a liquid turns into gas, typically when heated or exposed to air.
- We need to find a mixture where one component can evaporate leaving the other behind.
- **Mixture:** NaCl + water (water can evaporate, leaving NaCl behind)
- **Mixture:** Iodine + sand (both do not evaporate in this context)
- **Mixture:** Sawdust + water (water can evaporate, but sawdust is not soluble)

**Conclusion:** The correct match for evaporation is **(A) NaCl + water**.

### Final Matching:
- **A (Sublimation)** → **B (Iodine + sand)**
- **B (Filtration)** → **C (Sawdust + water)**
- **C (Evaporation)** → **A (NaCl + water)**

### Answer:
- A → B
- B → C
- C → A